urdu noun
translates to 'infantile donkey sir'
the tatoomian has traditionally been the name given to a male member of a social circle who amuses everyone with his witless shenanegens.. in present day slang, it can be used for any one who is suspected to have an std.

a man doesn't look before crossing the street.
the man gets trampled by a herd of rampaging sheep.
bystanders shrug, raise their hands in surrender and remark 'tatoomian'